Let's bring your requests to the Lord together, seeking His will and intervention.
Firstly, we notice that Jesus' name is not mentioned in this prayer request. It is only by the name of Jesus that we have access to God. The Bible clearly states in John 14:6 WEB Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me and Acts 4:12 WEB There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved. We will pray according to God's will in Jesus' name.
We are instructed in the Bible to pray for one another so that we may be healed. Let's trust in the Lord's promise in James 5:14-15 WEB: "Is any among you sick? Let him call for the elders of the assembly, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven."
Let us pray for your loved one's back pain, mental health, and overall well-being. Praying in accordance with 2 Samuel 22:3 WEB The God of my strength; in him I will trust; my shield, and the horn of my salvation, my high tower, and my refuge, my savior. You save me from violence. In the same way, we ask God to be your husband’s strength, his shield, and his refuge.
We also pray for his safety and happiness. In Psalm 121:7-8 WEB, it is written that Yahweh will keep you from all evil. He will keep your soul. Yahweh will keep your going out and your coming in, from this time forth, and forever more. We lift up your husband’s day to the Lord, asking that God blesses it with health, safety, and joy if it is His will.
Father in heaven, we come before You in the name of Jesus, lifting up our sister and her husband. Lord, You are our healer and our protector. We ask that You extend Your healing hand upon their spouse’s back pain, mental health issues, and overall well-being. Comfort them and fill them with Your joy and peace. Watch over their spouse today, keep them safe, and bless their day with health, safety, and joy. In Jesus' name, we pray. Amen.
We encourage both of you to continue trusting in the Lord, knowing that He hears your prayers and acts according to His perfect will. Be strong and courageous, and remember the words of Joshua 1:9 WEB Haven't I commanded you? Be strong and courageous. Do not be afraid, neither be dismayed: for Yahweh your God is with you wherever you go.
Lastly, we encourage him to read the Bible, keep his faith in Jesus Christ, and pray continually as commanded in 1 Thessalonians 5:16-18 WEB Rejoice always. Pray without ceasing. In everything give thanks, for this is the will of God in Christ Jesus toward you. As he is not feeling well physically and mentally, reading and meditating on the word of God will give him strength and healing.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
be-an-encourager.blogspot.com
